AIPMT PRELIMS2006Physics-Electrostatics
AIPMT PRELIMS 2006 Physics Electric Dipole MCQ Question
Type: MCQ-numerical-Medium-Class 12
An electric dipole of moment p is lying along a uniform electric field. The work done in rotating the dipole by 90° is:
A
√2 pE
B
pE/2
C
2pE
D
pE
Correct Answer
Option D
Detailed Explanation
The work done in rotating a dipole in a uniform electric field is given by W = pE(¹⁻ cosθ). For θ = 90°, W = pE.
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